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Iodine Clock Challenge

firewatch

DC91549

Price: FREE

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The demonstration of an “iodine clock” involves a chemical reaction that suddenly turns blue due to the formation of the familiar iodine–starch complex. The color change occurs abruptly, like an alarm clock ringing! Can you predict the time it will take for the iodine clock to ring?

Concepts

  • Kinetics
  • Catalysts
  • Potential Energy
  • Activation Energy